What powers vorpus.org?
Last seen Oct 2026 · 4 technologies across 4 categories
Caching
CDN
PaaS
Webmail
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| calloc | #4 | 160 |
| njs blog | #1 | 28 |
| structured | #39 | 21 |
| calloc vs malloc | #17 | 7 |
| python handle ctrl c | #5 | 2 |
| berkeley institute for data science | #10 | 2 |
| nathaniel smith | #10 | 2 |
| goto considered harmful | #11 | 2 |
| python ctrl c handler | #6 | 1 |
| python handle ctrl-c | #8 | 1 |
| python catch ctrl c | #11 | 1 |
| what is the point of concurrency | #76 | 1 |
| zs file | #9 | 0 |
| python ctrl c | #12 | 0 |
| cancel timeout | #15 | 0 |
| what does calloc do in c | #16 | 0 |
| what is syntactic bootstrapping | #17 | 0 |
| calloc arguments | #18 | 0 |
| python capture ctrl c | #19 | 0 |
| concurrency in go | #20 | 0 |
| considered harmful | #20 | 0 |
| golang goto | #21 | 0 |
| golang notes | #25 | 0 |
| python and go | #25 | 0 |
| calloc parameters | #27 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
5.87 / 10 · ranked #119,735 of all domains
157 referring domains · OpenPageRank
Search traffic
230 est. monthly organic visits (US)
50 keywords in Google's top 30
Page
- Language: English
- CDN: Fastly
- Weight: 0.5 MB · 8 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered May 2004 (22 years) via Gandi SAS, renews May 2027
- Hosted on Fastly (185.199.108.153, IPv6)
- DNS: Gandi
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 480,332, 4 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted